I have a Vokera 24-96 Flowmatic boiler.. 12 yrs old.. but suddenly only get hot water if the heating is on.. it's a combi boiler so should ignite when I put on the hot tap but this is not happening... any body know if the problem is just a diaphram? I am in Gloucester.. thanks, and can I fix it myself?

Sally Pitt, April 2009

sounds like the diaphram in the diverter valve, does the flow pipe get hot when only the hot water is running, i would get an engineer to rectify the problem as changing diverter valves are not for the in-experienced

STE, April 2009